#include <string>
#include <vector>
#include <fstream>
#include <iostream>
#include <map>

using namespace std;

map<int, string> dic{
    {2, "ABC"},
    {3, "DEF"},
    {4, "GHI"},
    {5, {"J, K, L"}},
    {6, {"M, N, O"}},
    {7, {"P, R, S"}},
    {8, {"T, U, V"}},
    {9, {"W, X, Y"}},    
};

/**/
string func(vector<int> num){
    int index = 0;
    string result;
    if(index == num.size()){
        return result;
    }
    for(int i = 0; i < num.size(); ++i){
        result = result + dic[num[i]];
    }
    ++index;
    func(num);
}

int main(int argc, char const *argv[])
{
    vector<int> num;
    ifstream ifs("namenum.in");

    /* >> 操作一次是读取一行数据*/
    for(int i : num){
        ifs >> num[i];
    }
    
    ifstream ofs("namenum.out");
    
    return 0;
}
